Removed un-used halide_trace_no_event.
Removed un-used halide_trace_no_event.

jiawen/Halide,ronen/Halide,psuriana/Halide,jiawen/Halide,psuriana/Halide,ronen/Halide,jiawen/Halide,jiawen/Halide,psuriana/Halide,kgnk/Halide,ronen/Halide,jiawen/Halide,ronen/Halide,kgnk/Halide,kgnk/Halide,psuriana/Halide,psuriana/Halide,kgnk/Halide,kgnk/Halide,psuriana/Halide,ronen/Halide,kgnk/Halide,ronen/Halide,jiawen/Halide,ronen/Halide,psuriana/Halide,ronen/Halide,jiawen/Halide,kgnk/Halide,kgnk/Halide